Hedi Reservoir

Hedi Reservoir is located in Hechun Town, Lianjiang City, Zhanjiang City. It is one of the three largest reservoirs in Guangdong Province and the largest "man-made sea" in Guangdong Province. There are 33 main and auxiliary dykes with a total length of 7.9 km.

There are many famous relics here, such as the authentic Leizhou Youth Canal inscribed by Comrade Deng Xiaoping, Dong Biwu's poem, the plaque inscribed by literary giant Guo Moruo on the youth Pavilion, and marshal Bai, a spruce planted by Marshal Chen Yi and his wife. There is a "youth Pavilion" on the qushou mountain, and the plaque is written by Guo Moruo.

In the reservoir area, there is also a Red Lake farm where a large area of oranges are planted. When the fruit is ripe, the slope is golden and beautiful. There is a large-scale fishing ground here. After sightseeing, you can also sit down and enjoy a delicious river food.

In addition, every winter, the national and provincial water skiing teams will train here.

Hedi Reservoir

Hedi Reservoir is located in Hechun Town, 14 kilometers northwest of Leizhou Peninsula. Part of it is in the west of Huazhou City. The reservoir area spans Luchuan and Bobai counties in Guangxi Zhuang Autonomous Region. It is located in the middle reaches of Jiuzhou River, with a catchment area of 1440 square kilometers and a total storage capacity of 1.151 billion cubic meters. It is a large reservoir mainly for irrigation, combined with comprehensive utilization of flood control, power generation and shipping. The designed irrigation area is 2 million mu, and the effective irrigation area is 1.27 million mu.

engineering construction

Leizhou Peninsula in China is a relatively arid area in history. In 1955 after the founding of the people's Republic of China, 2.06 million mu of farmland suffered from drought in Zhanjiang area, accounting for 44% of the cultivated land. 41000 mu of crops died of drought early, 46000 mu of crops were abandoned, and 30% of grain production was reduced.

According to the arrangement of Guangdong Province's subtropical development plan in 1956, in order to eliminate the drought in Leizhou Peninsula, in May 1958, the CPC Zhanjiang prefectural committee, with the support of Guangdong Province, decided to build Hedi Reservoir Youth Canal Project and set up "Leizhou Youth Canal Construction Committee", with Meng Xiande, Secretary of the prefectural committee and director of the committee, and Wang Yong, Deputy Commissioner, as the commander in chief of the project headquarters. In the suburbs of Lianjiang, Suixi, Haikang, Wuchuan and Zhanjiang, the county head or the Secretary of the county Party committee will be the commander of the county (District) project headquarters. More than 20 engineering and technical cadres headed by he Duoji, an engineer of the Design Institute, were sent by the provincial water resources department to the site to design and guide the construction.

The project started on June 10, 1958, with more than 50000 migrant workers at the peak of the reservoir area project, and was basically completed in September of the next year. During the peak period of the irrigation area project (i.e. the main river of the Youth Canal and all levels of channels below it), the number of migrant workers on the construction site reached 300000. In May 1960, the main canals were completed, and some benefits began to be brought into play. In the spring of 1963, the reservoir area and irrigation area were completed, with 73 million cubic meters of earthwork completed. According to the statistics in 1987, the total project cost is 107.72 million yuan, and the total maintenance cost is 440000 yuan.

Hedi Reservoir - Youth Canal Project, remarkable benefits, moving construction scene. Party and state leaders Zhu De, Chen Yi, Dong Biwu, Deng Xiaoping, Ye Jianying, Guo Moruo and others have successively visited the site and left many valuable inscriptions and poems. Among them, Deng Xiaoping, chairman of the Central Military Commission of the Communist Party of China, inscribed the name of the project for "Leizhou Youth Canal". Guo Moruo, vice chairman of the Standing Committee of the National People's Congress, wrote a poem: "three hundred thousand people work hard together, one hundred million square meters of earth rise to level rivers, move mountains and build seas for thousands of years, and suppress heaven in the battlefield.".

Reservoir characteristics

The crane reservoir is a multi-year regulation reservoir with a total storage capacity of 1 billion 187 million 500 thousand cubic meters, including 311 million 500 thousand cubic meters of flood storage capacity, 536 million cubic meters of storage capacity, and 340 million cubic meters of dead storage. After the agreement between the governments of two provinces of Guangdong and Guangxi in June 1958 decided that the normal high water level was 40.5 meters, the design flood level did not exceed 42 meters. The corresponding water surface of normal high water level is 108.4 square kilometers, and the corresponding storage capacity is 876 million cubic meters.

There are one main dam, 36 auxiliary dams, two spillways, one water conveyance tunnel, one ship lock and two power stations in the reservoir area.

The main dam is a homogeneous earth dam with a crest elevation of 43M, a maximum dam height of 29.25m, a crest length of 885m, a wave wall height of 0.8m and a crest width of 7m. The dam body is mainly filled with artificial soil and rolled by tractors.

There are 36 auxiliary dams with a total length of 7025m and the maximum dam height of 23.7m. The length of auxiliary dams is the longest among reservoirs in Guangdong Province.

Both spillways are on the left bank. The first spillway has a clear width of 50m, which is controlled by 5-hole 10 × 4.5m radial steel gate. The bottom elevation of the gate is 35.2m, and the designed maximum discharge is 1500m3 / s. The second spillway has a clear width of 120m and a crest elevation of 38m. It is also controlled by radial steel gate, with a designed maximum discharge of 1530 cubic meters per second.

The water conveyance tunnel is a down the hole type, with an inlet elevation of 31.0 meters. It is divided into two holes, each hole has a section of 4 × 3 meters, and is controlled by steel radial gate. The maximum designed water conveyance flow is 155 cubic meters per second (another data is 120 cubic meters per second).

A ship lock, 24 meters long and 10.5 meters wide, can pass 40 tons of ships.

There are two power stations with a total installed capacity of 5150 kW.

The reservoir area inundated 80700 mu of cultivated land and relocated 41200 people.

Engineering benefit

The canal system of Hedi Reservoir irrigation area runs through most of Leizhou Peninsula from north to south. The total length of the main canal is 76 kilometers, and the designed maximum discharge capacity is 120 cubic meters per second. There are five main canals, including Donghai River, Xihai River, East Canal, West Canal and Silian canal, with a total length of 195 km; 155 main canals, with a total length of 1164 km; 1467 branch canals, with a total length of 4041 km. In the middle of the canal, a Xichong sluice is built to regulate the water level and flow of the upper and lower reaches, and a ship lock is set up, which can be used for navigation of ships of less than 40 tons. A new bridge Dadu channel is built on Donghai River, one kilometer away from Suixi County. It is the largest canal system building in Hedi Reservoir irrigation area, with a total length of 1206 meters. It is divided into 40 spans, double cantilever support and double column pier. The maximum pier height is 29.5 meters, the bottom width of the aqueduct is 5.5 meters, and the height of the channel is 3.5 meters. The designed discharge is 13.25 cubic meters per second. It can be used for navigation of 20 tons of ships.

After the completion of Hedi Reservoir Youth Canal, 1.55 million mu of farmland in Lianjiang, Suixi, Haikang, Zhanjiang suburbs, Wuchuan and other counties and districts of Leizhou Peninsula has been irrigated, and grain production has been bumper year after year. In 1963, a severe drought of 1943 type occurred in Leizhou Peninsula. Since last autumn, there has been no rain for eight consecutive months. Due to the important role played by Hedi Reservoir, 1.2 million mu of paddy fields were planted on time, and the grain yield increased by nearly 100 million jin. In 1943, there was a severe drought, which resulted in the loss of agricultural production and famine. Tens of thousands of people died of starvation. In 1964, Dong Biwu, vice president of the state, inspected Hedi Reservoir and wrote a poem that "Hedi water is the reservoir, Leizhou is not worried about drought, the channel is divided into four main channels, and the river cuts off Jiuzhou flow".

Expansion project

After the completion and operation of Hedi Reservoir, due to the small flood data based on the original design and the low flood control standard, the dam height can not prevent the once-in-a-hundred-year flood plus 10-level wind wave. During 1960-1965, the reservoir was hit by four typhoons of magnitude 9-10, and the main and auxiliary dam revetments were damaged to varying degrees. The dam line was very long. There were hidden dangers in 37 main and auxiliary dams built along the east side of Li Zhan railway, such as piping, water leakage and termite cave. The reservoir impoundment seriously threatened the safety of the downstream 160000 people, 200000 mu farmland and railway. Based on the study of provincial and local hydropower departments, Zhanjiang Hydropower Bureau proposed the design specification and preliminary design of Hedi Reservoir Expansion Project in 1973. A new main dam will be proposed to replace 32 auxiliary dams. The dam line will be shortened by 6730 meters, the catchment area will be increased by 53 square kilometers, and the Xingli reservoir capacity will be expanded by 118 million cubic meters. The Ministry of water resources and electric power approved the preliminary design of Hedi Reservoir Expansion Project in April 1975 after organizing the on-site design review, and approved the national investment of 46.56 million yuan. The main contents include: 19.5 km of Lijiang Zhanjiang railway; a new main dam with a length of 461 m; the total storage capacity can be increased by 275 million cubic meters; the installed capacity of the second power station at the head of the canal will be increased by 3200 kW; the new longying Xiwei with a reclamation area of 3200 kW Ten thousand mu, to accommodate 12200 people.

The extension project started in June 1975. By December 1982, 17.4 km of Li Zhan railway has been reconstructed, new longying Xiwei, the second power station, diversion tunnel, curtain grouting of main dam foundation and reinforcement of retaining main and auxiliary dams have been completed. Later, the main dam could not be filled because of the unresolved immigration problem. In 1983, construction was suspended due to the state's reduction of infrastructure investment.

After the extension project was postponed, in order to ensure the safety of the downstream, the provincial flood control, drought control and wind control headquarters decided to limit the water storage of the reservoir, reducing the original normal water level from 40.5M to 38.2m, and then adjusting it to 39.3m to control the operation, reducing the profitable storage capacity by 128 million cubic meters.

In the early 1990s, Zhanjiang municipal government proposed to change the expansion project to the reinforcement scheme of the original main and auxiliary dams.

Address: Hechun Town, Lianjiang City, Zhanjiang City, Guangdong Province

Longitude: 110.312902

Latitude: 21.704745

Tel: 0759-6458123

Tour time: 2-3 hours

Ticket information: Free

Opening Hours:

Chinese PinYin : He Di Shui Ku